321 Watch Batteries Blue Dot

Very light, the dot is very clear and no need for batteries....

Shipping was fast and packaging was well done. The return terms are very fair if needed (I did not in my case). As for the optic itself, I've been happy so far. Mounting to a Glock 19 Gen 5 using the MOS system. Make sure to buy the kit from Trijicon that includes the proper length screws and sealing plate and to use some blue loctite. If we're being honest Trijicon should include the screws by default. The clarity on the dot is excellent. Manual adjust is a great option, but I find the auto adjust to be very fast, even going from complete darkness to weapon light illumination. Adjustments for windage and elevation are positive. The footprint of the optic is smaller than I anticipated, which is a plus. There is a blue tint to help with making the dot stand out, but I don't find it distracting. Only a few hundred rounds through the firearm with the optic equipped but no issues so far. It becomes clear quickly how the design of the top of the optic window is a real plus for durability in the way it would disperse an impact.

Product is well designed and precision machined for precise fit. Mounting to the camera involves lining up the red dot on the adapter with the red lens mounting dot on your camera. Once the white Install index mark on the adapter's blue ring is aligned with the red dot on the adapter's black ring, lens mounting is easy and solid. I really love the option to use the lens aperture ring or move it to the smallest aperture and use the blue ring on the adapter; I use one or the other depending on the lens. Focus confirmation was my reason for buying this particular unit. EF cameras, of course, do not have the manual focus aids designed into FD lens cameras' viewfinders and are a bit tricky to [manually] focus well. This product solves that problem and yes, the confirmation works well.

The cost? Ridiculous. The added utility to my M10? Priceless. I used a tiny dot of blue silicon to hold it fast and it has not budged.

Watch out for blue shadows though. A warming filter does wonders. What will we do if Kodak disappears?

I retired 2 D-link DS-321's and a Seagate NAS for this. The speed is amazing. I installed 4 Crucial MX500 1Tb ssd's for the time being, until bigger quality ssd prices come down. Using it as multipurpose. A Emby media server to the Emby App on a Roku and also Emby on a Kodi. Also using it for data storage. Software wasn't too bad of a learning curve. Highly recommend this NAS for large home or small office.

The sound, clarity and bass from this speaker is better than expected. Almost as good as my 2001 Bose 321 system in another room.

I bought this to replace another micro red dot that I truly did like but when I changed batteries I would lose my zero. I didn't like this and the Burris FastFire 3 has the battery compartment on top and is easy to replace. Took it to the range once and it performed great. I have several Burris products and love them all.

So far, so good. I've been using the smaller capacity (blue) batteries by these guys for a year or so and when the larger ones came out, getting some seemed like a no brainer. They've always worked great and so far these ones do to. Great product.

Sized well for the Nikon EN-EL 15C batteries, easy to get the batteries in and out, blue color shows up well in camera bag.